Science

Edit Answers
12345678910
Across
  1. 3. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
  2. 4. in early geologic time, a supercontinent that incorporated almost all the landmasses on Earth
  3. 7. drift the gradual movement of the continents across the earth's surface through geological time.
  4. 8. the rigid outer part of the earth, consisting of the crust and upper mantle.
  5. 9. a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle.
  6. 10. occurs when two tectonic plates move away from each other
Down
  1. 1. the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
  2. 2. push a proposed driving force for plate motion in plate tectonics
  3. 5. an area on Earth where two or more lithospheric plates collide
  4. 6. pull The force, caused by the sinking of the cold